A three-page printable practice packet where Page 1 features 10 double-digit fast subtraction facts formatted in a single neat vertical line with primary handwriting lines, and Pages 2 and 3 feature 18 three-digit subtraction problems requiring regrouping in both tens and ones, now built with authentic place value chart boxes with aligned H-T-O column headers, dedicated regrouping boxes, vertical channel dividers, and place-value answer cells.
